Table 5 Total N 2 O emissions from two sugarcane soils (sandy loam and clay) from Broadwater (NSW) after periods of 30 and 60Â days incubation at three WFPS levels following addition of OAs
From: Greenhouse gas emissions from sub-tropical agricultural soils after addition of organic by-products
| Â | Cumulative N2O emission (kg N2O-NÂ ha-1) | |||||
|---|---|---|---|---|---|---|
| Â | Sandy loam soil | Clay soil | ||||
| Â | WFPS | WFPS | ||||
Treatment | 60% | 75% | 90% | 60% | 75% | 90% |
| Â | Â | Â | Day 30 | Â | Â | Â |
UN | 0.04 ± 0.01 | 0.02 ± 0.002 | 1.40 ± 0.08 | 0.06 ± 0.01 | 0.04 ± 0.01 | 0.16 ± 0.02 |
MM | 0.02 ± 0.001 | 0.02 ± 0.003 | 0.05 ± 0.003 | 0.03 ± 0.01 | 0.02 ± 0.002 | 0.04 ± 0.01 |
RB | 0.02 ± 0.001 | 0.02 ± 0.003 | 0.04 ± 0.01 | 0.03 ± 0.01 | 0.05 ± 0.02 | 0.04 ± 0.01 |
MB | 0.02 ± 0.001 | 0.02 ± 0.003 | 0.02 ± 0.001 | 0.04 ± 0.01 | 0.03 ± 0.002 | 0.03 ± 0.01 |
CM | 0.02 ± 0.001 | 0.03 ± 0.01 | 1.48 ± 0.15 | 0.03 ± 0.004 | 0.04 ± 0.01 | 0.07 ± 0.03 |
HC | 0.65 ± 0.11 | 0.73 ± 0.09 | 2.73 ± 0.38 | 0.16 ± 0.02 | 0.38 ± 0.13 | 0.72 ± 0.19 |
| Â | Â | Â | Day 60 | Â | Â | Â |
UN | 1.07 ± 0.07 | 1.49 ± 0.26 | 3.73 ± 0.24 | 0.97 ± 0.07 | 0.89 ± 0.06 | 1.93 ± 0.27 |
MM | 1.97 ± 0.21 | 3.20 ± 0.33 | 3.65 ± 0.15 | 1.11 ± 0.13 | 1.26 ± 0.15 | 1.63 ± 0.14 |
RB | 0.61 ± 0.03 | 0.81 ± 0.07 | 1.14 ± 0.17 | 0.51 ± 0.03 | 0.60 ± 0.05 | 0.81 ± 0.14 |
MB | 1.17 ± 0.16 | 2.09 ± 0.25 | 2.25 ± 0.24 | 0.72 ± 0.03 | 1.12 ± 0.13 | 1.51 ± 0.14 |
CM | 1.08 ± 0.04 | 1.49 ± 0.17 | 4.06 ± 0.45 | 0.86 ± 0.08 | 1.20 ± 0.05 | 1.42 ± 0.06 |
HC | 1.99 ± 0.12 | 2.32 ± 0.44 | 8.29 ± 0.85 | 1.27 ± 0.15 | 2.46 ± 0.39 | 4.25 ± 0.52 |